Buggy code:
private boolean includeAntRuntime = true ; private Path antRuntimeClasses = null ; private boolean showOutput = false ; private boolean outputToFormatters = true ; private File tmpDir ; private AntClassLoader classLoader = null ; private Permissions perm = null ; private JUnitTask . ForkMode forkMode = new JUnitTask . ForkMode ( "perTest" ) ; private boolean splitJunit = false ; private JUnitTaskMirror delegate ; private boolean forkedPathChecked = false ; private boolean haltOnError = false ; private boolean haltOnFail = false ; private boolean filterTrace = true ; private boolean fork = false ; private String failureProperty ; private String errorProperty ; private static final int STRING_BUFFER_SIZE = 128 ; public static final String TESTLISTENER_PREFIX = "junit.framework.TestListener:<seq2seq4repair_space>" ; private static final FileUtils FILE_UTILS = FileUtils . getFileUtils ( ) ; public void setReloading ( boolean value ) { } public void setFiltertrace ( boolean value ) { } public void setHaltonerror ( boolean value ) { } public void setErrorProperty ( String propertyName ) { } public void setHaltonfailure ( boolean value ) { } public void setFailureProperty ( String propertyName ) { } public void setFork ( boolean value ) { } public void setForkMode ( JUnitTask . ForkMode mode ) { } public void setPrintsummary ( JUnitTask . SummaryAttribute value ) { } public static class SummaryAttribute extends EnumeratedAttribute { public String [ ] getValues ( ) { } public boolean asBoolean ( ) { } } public void setTimeout ( Integer value ) { } public void setMaxmemory ( String max ) { } public void setJvm ( String value ) { } public Argument createJvmarg ( ) { } public void setDir ( File dir ) { } public void addSysproperty ( Environment . Variable sysp ) { } public void addConfiguredSysproperty ( Environment . Variable sysp ) { } public void addSyspropertyset ( PropertySet sysp ) { } public Path createClasspath ( ) { } public Path createBootclasspath ( ) { } public void addEnv ( Environment . Variable var ) { } public void setNewenvironment ( boolean newenv ) { } private void preConfigure ( BaseTest test ) { } public void addTest ( JUnitTest test ) { } public BatchTest createBatchTest ( ) { } public void addFormatter ( FormatterElement fe ) { } public void setIncludeantruntime ( boolean b ) { } public void setShowOutput ( boolean showOutput ) { } public void setOutputToFormatters ( boolean outputToFormatters ) { } public void addAssertions ( Assertions asserts ) { } public Permissions createPermissions ( ) { } public void setCloneVm ( boolean cloneVm ) { } public JUnitTask ( ) throws Exception { } public void setTempdir ( File tmpDir ) { } public void init ( ) { } private static JUnitTaskMirror createMirror ( JUnitTask task , ClassLoader loader ) { } private final class SplitLoader extends AntClassLoader { public SplitLoader ( ClassLoader parent , Path path ) { } protected synchronized Class loadClass ( String classname , boolean resolve ) throws ClassNotFoundException { } private final String [ ] splitClasses = new String [ ] { "BriefJUnitResultFormatter" , "JUnitResultFormatter" , "JUnitTaskMirrorImpl" , "JUnitTestRunner" , "JUnitVersionHelper" , "OutErrSummaryJUnitResultFormatter" , "PlainJUnitResultFormatter" , "SummaryJUnitResultFormatter" , "XMLJUnitResultFormatter" } ; private boolean isSplit ( String classname ) { } } public void execute ( ) throws BuildException { } protected void execute ( JUnitTest arg ) throws BuildException { } protected void execute ( List testList ) throws BuildException { } private JUnitTask . TestResultHolder executeAsForked ( JUnitTest test , ExecuteWatchdog watchdog , File casesFile ) throws BuildException { } private void checkIncludeAntRuntime ( CommandlineJava cmd ) { } private boolean equalsWithOutAndErr ( String summaryOption ) { } private void checkIncludeSummary ( CommandlineJava cmd ) { } private void checkForkedPath ( CommandlineJava cmd ) { } private File createTempPropertiesFile ( String prefix ) { <START_BUG> File propsFile = JUnitTask . FILE_UTILS . createTempFile ( prefix , ".properties" , ( ( tmpDir ) != null ? tmpDir : getProject ( ) . getBaseDir ( ) ) , true ) ; <END_BUG> return propsFile ; } protected void handleOutput ( String output ) { } protected int handleInput ( byte [ ] buffer , int offset , int length ) throws IOException { } protected void handleFlush ( String output ) { } public void handleErrorOutput ( String output ) { } public void handleErrorFlush ( String output ) { } private JUnitTask . TestResultHolder executeInVM ( JUnitTest arg ) throws BuildException { } protected ExecuteWatchdog createWatchdog ( ) throws BuildException { } protected OutputStream getDefaultOutput ( ) { } protected Enumeration getIndividualTests ( ) { } protected Enumeration allTests ( ) { } private FormatterElement [ ] mergeFormatters ( JUnitTest test ) { } protected File getOutput ( FormatterElement fe , JUnitTest test ) { } protected void addClasspathEntry ( String resource ) { } private boolean addClasspathResource ( String resource ) { } private void logTimeout ( FormatterElement [ ] feArray , JUnitTest test , String testCase ) { } private void logVmCrash ( FormatterElement [ ] feArray , JUnitTest test , String testCase ) { } private void logVmExit ( FormatterElement [ ] feArray , JUnitTest test , String message , String testCase ) { } private void createClassLoader ( ) { } private void deleteClassLoader ( ) { } protected CommandlineJava getCommandline ( ) { } private static final class ForkedTestConfiguration { private boolean filterTrace ; private boolean haltOnError ; private boolean haltOnFailure ; private String errorProperty ; private String failureProperty ; ForkedTestConfiguration ( boolean filterTrace , boolean haltOnError , boolean haltOnFailure , String errorProperty , String failureProperty ) { } ForkedTestConfiguration ( JUnitTest test ) { } public boolean equals ( Object other ) { } public int hashCode ( ) { } } public static final class ForkMode extends EnumeratedAttribute { public static final String ONCE = "once" ; public static final String PER_TEST = "perTest" ; public static final String PER_BATCH = "perBatch" ; public ForkMode ( ) { }

Fix:
File propsFile = JUnitTask . FILE_UTILS . createTempFile ( prefix , ".properties" , ( ( tmpDir ) != null ? tmpDir : getProject ( ) . getBaseDir ( ) ) , true , true ) ;